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| author | Martin Storsjö <martin@martin.st> | 2013-07-19 10:59:17 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2013-07-22 10:15:37 +0300 |
| commit | b63bb251ea6d6ba23295294e37a92625c0192206 (patch) | |
| tree | 0557efc37e13206b791ac55ed6c2302e3272776e /libavcodec/arm/fft_init_arm.c | |
| parent | d6e4f5fef0d811e180fd7541941e07dca9e11dc0 (diff) | |
| download | ffmpeg-b63bb251ea6d6ba23295294e37a92625c0192206.tar.gz | |
arm: Add VFP-accelerated version of imdct_half
Before After
Mean StdDev Mean StdDev Change
This function 2653.0 28.5 1108.8 51.4 +139.3%
Overall 17049.5 408.2 15973.0 223.2 +6.7%
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavcodec/arm/fft_init_arm.c')
| -rw-r--r-- | libavcodec/arm/fft_init_arm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libavcodec/arm/fft_init_arm.c b/libavcodec/arm/fft_init_arm.c index 133fb84f69..1c4568ddc2 100644 --- a/libavcodec/arm/fft_init_arm.c +++ b/libavcodec/arm/fft_init_arm.c @@ -26,6 +26,8 @@ void ff_fft_permute_neon(FFTContext *s, FFTComplex *z); void ff_fft_calc_neon(FFTContext *s, FFTComplex *z); +void ff_imdct_half_vfp(FFTContext *s, FFTSample *output, const FFTSample *input); + void ff_imdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input); void ff_imdct_half_neon(FFTContext *s, FFTSample *output, const FFTSample *input); void ff_mdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input); @@ -48,6 +50,13 @@ av_cold void ff_fft_init_arm(FFTContext *s) { int cpu_flags = av_get_cpu_flags(); + if (have_vfp(cpu_flags)) { +#if CONFIG_MDCT + if (!have_vfpv3(cpu_flags)) + s->imdct_half = ff_imdct_half_vfp; +#endif + } + if (have_neon(cpu_flags)) { s->fft_permute = ff_fft_permute_neon; s->fft_calc = ff_fft_calc_neon; |